Home / 31,817.75-47,697.39-14,278.01

Finding the Fourth Proportional to 31,817.75, 47,697.39 and 14,278.01

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Solution

The fourth proportional to 31,817.75, 47,697.39 and 14,278.01 is: 21,403.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,817.75 : 47,697.39 = 14,278.01 : x
  2. Step 2: Convert to fraction form
    31,817.75/47,697.39 = 14,278.01/x
  3. Step 3: Cross multiply
    31,817.75x = 47,697.39 × 14,278.01
  4. Step 4: Simplify right side
    31,817.75x = 681,023,572.91
  5. Step 5: Solve for x
    x = 681,023,572.91/31,817.75
  6. Step 6: Final answer
    x = 21,403.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.